The Rare Book Library in Avranches, Normandy, France, includes a priceless treasure, the 199 surviving medieval manuscripts from the Mont Saint-Michel Abbey. 70 manuscripts were produced in the scriptorium of the abbey. The other manuscripts were produced in secular scriptoria located in Paris, in Île-de-France (the Paris region) or in Italy. Here is a virtual journey through the ages, from the 8th century to the early 21st century. Also available in French.
French edition: http://archive.org/details/ManuscritsMontSaintMichel